128 lines
3.3 KiB
Perl
128 lines
3.3 KiB
Perl
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# Copyright (C) 2003-2012 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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###############################################################
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# The main copy of this file is in Automake's git repository. #
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# Updates should be sent to automake-patches@gnu.org. #
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###############################################################
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package Autom4te::Configure_ac;
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use 5.006;
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use strict;
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use Exporter;
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use Autom4te::Channels;
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use Autom4te::ChannelDefs;
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use vars qw (@ISA @EXPORT);
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@ISA = qw (Exporter);
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@EXPORT = qw (&find_configure_ac &require_configure_ac);
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=head1 NAME
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Autom4te::Configure_ac - Locate configure.ac or configure.in.
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=head1 SYNOPSIS
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use Autom4te::Configure_ac;
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# Try to locate configure.in or configure.ac in the current
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# directory. It may be absent. Complain if both files exist.
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my $file_name = find_configure_ac;
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# Likewise, but bomb out if the file does not exist.
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my $file_name = require_configure_ac;
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# Likewise, but in $dir.
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my $file_name = find_configure_ac ($dir);
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my $file_name = require_configure_ac ($dir);
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=over 4
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=back
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=head2 Functions
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=over 4
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=item C<$configure_ac = find_configure_ac ([$directory])>
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Find a F<configure.ac> or F<configure.in> file in C<$directory>,
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defaulting to the current directory. Complain if both files are present.
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Return the name of the file found, or the former if neither is present.
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=cut
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sub find_configure_ac (;@)
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{
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my ($directory) = @_;
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$directory ||= '.';
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my $configure_ac =
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File::Spec->canonpath (File::Spec->catfile ($directory, 'configure.ac'));
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my $configure_in =
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File::Spec->canonpath (File::Spec->catfile ($directory, 'configure.in'));
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if (-f $configure_ac)
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{
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if (-f $configure_in)
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{
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msg ('unsupported',
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"'$configure_ac' and '$configure_in' both present.\n"
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. "proceeding with '$configure_ac'");
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}
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return $configure_ac
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}
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elsif (-f $configure_in)
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{
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return $configure_in;
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}
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return $configure_ac;
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}
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=item C<$configure_ac = require_configure_ac ([$directory])>
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Like C<find_configure_ac>, but fail if neither is present.
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=cut
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sub require_configure_ac (;$)
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{
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my $res = find_configure_ac (@_);
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fatal "'configure.ac' or 'configure.in' is required"
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unless -f $res;
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return $res
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}
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1;
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### Setup "GNU" style for perl-mode and cperl-mode.
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## Local Variables:
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## perl-indent-level: 2
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## perl-continued-statement-offset: 2
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## perl-continued-brace-offset: 0
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## perl-brace-offset: 0
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## perl-brace-imaginary-offset: 0
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## perl-label-offset: -2
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## cperl-indent-level: 2
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## cperl-brace-offset: 0
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## cperl-continued-brace-offset: 0
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## cperl-label-offset: -2
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## cperl-extra-newline-before-brace: t
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## cperl-merge-trailing-else: nil
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## cperl-continued-statement-offset: 2
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## End:
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